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Tobi J. — Mid-Level Full-Stack Software Engineer from Nigeria

Tobi J.

Mid-Level Full-Stack Software Engineer

Nigeria 6+ years
Open to offersNew to Platform
Languages
EnglishGermanFrench
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About

Tobi J. is a Senior Full-Stack Software Engineer and real-time systems specialist with over four years of hands-on experience delivering scalable SaaS platforms and cloud-native applications. Operating across the freelance marketplace, plastics manufacturing, and engineering industries in Nigeria, Tobi has led engineering teams and managed the development of real-time communication systems, including a chat platform handling 50K+ messages monthly with sub-100ms latency. At Expert Hive Freelance Services, Tobi architected and deployed a full-stack marketplace using Django, React Native, PostgreSQL, and Redis, optimizing for performance and cost reduction. His work at Sonic Plastics Limited featured secure API design with AES-256 encryption and robust role-based access controls, while at Stag Engineering Limited he improved productivity through React Native and real-time task management solutions. Tobi’s leadership facilitated a 40% reduction in API latency, 20% decrease in infrastructure costs, and a significant boost in user engagement across projects.

Experience

  • Software Developer & Product Design Team Lead

    Expert Hive Freelance Services · 2022 — Present
    Led a team of five engineers after designing a scalable real-time chat system capable of handling over 50K messages per month with sub-100ms latency. Developed a full-stack freelance marketplace utilizing Django, DRF, PostgreSQL, Redis, and Firebase, catering to more than 2,000 active users and facilitating 1,200+ monthly transactions. Executed scalable WebSocket-based messaging and typing indicators using Redis pub/sub, enhancing user engagement. Managed service deployments on AWS EC2 and Cloudflare with autoscaling, achieving a 20% reduction in hosting costs. Set up API standards and onboarding processes that streamlined new developer integration, decreasing ramp-up time by 35%.

  • Software Developer

    Sonic Plastics Limited · 2021 — 2022
    Developed a Django-based inventory platform, successfully reducing data synchronization latency by 45% for distributed clients. Improved API security by implementing AES-256 encryption along with RBAC, resulting in no unauthorized access incidents. Integrated Firestore to provide real-time inventory visibility for better operational decision-making. Mentored junior developers and refactored TypeScript modules, which reduced code complexity by 25%.

  • Software Developer

    Stag Engineering Limited · 2019 — 2021
    Created a React Native task management application featuring real-time synchronization and offline capabilities, leading to a significant increase in field productivity. Enhanced the performance of Django REST APIs and PostgreSQL queries, contributing to a 50% decrease in reporting latency. Established CI/CD pipelines and automated notifications utilizing Google Cloud Scheduler, resulting in a reduction of manual workload.

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